IPAR 1023B power amplifier Class A/B LM317 2x50W / 8 Ohm

IPARD AUDIO 1023B power amplifier LM317 2x60W / 8 Ohm

The 1023B is a compact and efficient Class AB power amplifier. It uses a very careful power design and proven audio components.

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5.0 / 5

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Reference : 13076
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240,83 €tax excl.

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Shipping date: 26-08-2019.

Orders placed before 1pm (GMT+1) will be shipped the same day (working day).

Produit garantie 2 ans

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IPAR 1023B

Power amplifier 2 x 50W / 8 Ohm


Power amplifier Ipar 1023B


The 1023B is a compact and efficient class power AB amplifier.

It has a well-designed power-supply and uses well-known audio components to provide a clear and precise sound while reducing interferences and environmental noises associated with regular power amplifiers.

Capable of producing 50W RMS per channel, the device does not compromise on power, thus being an ideal choice for a room-sized sound-system.

Class AB amplifier IPAR 1023B

Class AB power amplifier


The amplification stage works with complementary power transistors NJW0281 / NJW0302, BD139 / BD140 and a Epitaxial BC560 transistor. Those components are chosen for their excellent linearity in the gain as well as their large headroom.

Furthermore, these elements are designed to withstand high voltages while maintaining a very low noise level. This allows the amplifier to develop an impressive power for its size while maintaining a clear and defined sound.

Well-designed power stage


The regulated linear power of 1023B operates a high-power ring transformer isolated with an iron cover which significantly reduces vibration and noise. It is designed to support up to 300W, a comfortable room to return a deep dynamic without causing additional distortion. The circuit is designed so that the voltage and current are completely independent.

With two consecutive 30A bridges and a set of capacitors ELNA 40,000 uF, the power stage features an excellent stability, which allows to significantly improve the signal / noise ratio (105dB).

An LM317 regulator maintains a stable voltage to a level that is ideal for complementary power transistors (NJW0281 / NJW0302), preserving the excellent linearity of the gain.

The power goes through a Omron power relay to prevent unwanted noises during power up.

regulated linear power amplifier supply
https://www.audiophonics.fr/img/cms/Images/Produits/13K/13076/radiateur.jpg

Management of thermal stresses


All critical components are mounted on the heat sink, thus providing considerable power while maintaining thermal stresses under controlled threshold.

The radiator has for this purpose fins of 36 mm for a very efficient passive cooling.

Adjustable input voltage


A switch located just above the power cable toggles between two input voltages (220/110 V) so as not to be geographically limited by electrical codes.

voltage selector input
Amplifier IPAR 1023


To go further, the 1023B amplifier ideally combines with the 1023A preamplifier model. This configuration provides a whole preamplifier / headphone amplifier / source selector / volume control / power amplifier while taking advantage of matching specifications.

Characteristics
TypePower amplifier
Power Supply100V - 220V
InputRCA stereo
Output Power2x 50 Watts (charge 8 ohms)
Frequency response10-20kHz (± 0.04 dB)
THD0.0063% (50W RMS 8 Ohms)
SNR105dB
Dimensions260 x 78 x 198 mm
Weight6290 g
Parts included
IPAR 1023Bx1
Pièces fournies
IPAR 1023Bx1
accessories not included
Power cable (Available as accessories)
 
Data sheet
InputRCA
OutputSpeaker terminal
ColorSilver
ColorBlack
Channel2 channels (Stereo)
ClassClass A / AB
HeatsinkYes
Total Power (W)0-50
Power (max)50W
 
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Average votes
5.0 / 5
1 reviews
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 5/5
Date :
Une véritable révélation !
Ce bloc d'amplification Ipar 1023B est exceptionnel de part sa musicalité.
C'est un fil droit. Il est neutre, dynamique et très bien timbré. Aucune agressivité, grande aération des plans sonores. De plus il chauffe peu. Il ne lui manque rien. Surtout à ce prix.
Il se marie parfaitement bien avec le préampli Little Dot mk3.
Le tube lui apporte encore plus de timbres fruités.





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This review has been posted for IPAR 1023B power amplifier Class A/B LM317 2x50W / 8 Ohm
 
IPAR 1023B power amplifier Class A/B LM317 2x50W / 8 Ohm
The 1023B is a compact and efficient Class AB power amplifier. It uses a very careful power design and proven audio components.

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